2.Material and methods
The study assessed the effect of lemon juice on BP in two occasions: acute effect of 50 ml lemon juice given once and chronic effect of 50 ml lemon juice once daily for 14 days. Ninty-eight (80 for acute, 18 for chronic) hypertensive patients were included in this prospective study. All patients were older than 18 years old and none of them had any change in their treatment within one month preceding the study. Patients having hypertensive emergency, acute illness, pregnancy or chronic diseases such as diabetes mellitus, kidney disease, and heart failure were excluded. Patients using calcium antagonists were not included in the study.